31 What reagent and/or catalysts are necessary to bring about each conversion? (a) CH₂CH=CHCH, CH₂cdi | (b) CH₂C=CH₂ (c) - CH3 | HOTE (d) CH₂C=CH₂ TE - Br Iteci C-S. CH₂CH₂CHCH₂ ubo CH3 1 CH3CCH, | OH I CH3 HOT CH₂C-CH₂ Br Br 08

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